Liquid crystal display device

A liquid crystal display (LCD) device comprising:

• a first substrate, wherein a plurality of interconnections are formed on the first substrate;
• a protection layer covering the interconnections;
• a second substrate formed to oppose the first substrate;
• a liquid crystal (LC) layer interposed between the first and second substrates;
• and
• a sealant configured to contact the protection layer and interposed between the first and second substrates so as to surround and substantially seal the LC layer, wherein the protection layer comprises i) three or more convex portions and ii) three or more concave portions respectively directly facing the interconnections and alternatively formed with respect to the convex portions, wherein each of the convex portions protrudes convexly toward the sealant, wherein the size of each of the convex portions is greater than the size of each of the neighboring concave portions, and wherein the convex portions are evenly spaced apart.